US4065844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing puller for washing machines
Assignee: Individual
•
Filing: 1976-08-09
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Granted: 1978-01-03
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Expires: 1996-08-09
Abstract
Abstract The invention is a means for removing an often noisy and troublesome upper spin tube bearing used in a Speed Queen washer and comprises an elongated rigid sheath configured to fit over the spin tube bearing housing, the sheath having a central threaded shaft extending therethrough to extend into the bearing housing and through the annular spin tube bearing, the bearing being removed by means of a pressure disc threaded on the shaft beneath the bearing and drawn upwardly by rotating a nut on an upper portion of the shaft.
Inventors
- 👤 Martin J. Lieser
- 👤 Donna Jean Lieser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:08
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/02; B25B27/06; B25B27/062; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53796; Y10T29/53848; Y10T29/53857; Y10T29/53878; Y10T29/53883
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
324 words
A tool for removing the annular upper spin tube bearing from an automatic washing machine having a generally cylindrical main bearing housing supported by a pair of angulated legs above a mounting plate having an access opening therein through which the bottom of said main bearing housing is accessible, said tool comprising; a. an elongated rigid sheath having: (i) an upper cylinder; and, (ii) a lower cylinder coaxial with and of larger diameter larger than said upper cylinder and dimensioned to fit over said main bearing housing; b. said lower cylinder having two opposed cut away portions to receive said legs and a lower plane-defining edge to rest on said mounting plate such that the interior of said cylinder is accessible through the opening in said plate; c. said upper cylinder having an upper end plate thereover with a bore therethrough; d. a second plate having a central bore therein and disposed atop said lower cylinder such that said upper cylinder is supported on said second plate and including means to retain said second plate on said lower cylinder and center said upper cylinder on said second plate; e. a threaded shaft extending through the bores in said plates and passing through said cylinders; f. a removable pressure disc retained on the lower end of said shaft, said pressure disc being of a diameter greater than the interior diameter of said upper spin tube bearing; g. a threaded nut disposed on said shaft above said end plate, whereby said cylinder can be disposed over a main bearing housing of a washer with the cut-away portions oriented over the angulated legs thereof, and said shaft can be lowered through said cylinder and through the upper spin tube bearing of said machine, said disc can be retained on the lower end of said shaft, and by rotating said threaded nut to elevate said shaft, said upper spin tube bearing will be removed from the bearing housing.
Claim 2
Dependent Claim
324 words
A tool for removing the annular upper spin tube bearing from an automatic washing machine having a generally cylindrical main bearing housing supported by a pair of angulated legs above a mounting plate having an access opening therein through which the bottom of said main bearing housing is accessible, said tool comprising; a. an elongated rigid sheath having: (i) an upper cylinder; and, (ii) a lower cylinder coaxial with and of larger diameter larger than said upper cylinder and dimensioned to fit over said main bearing housing; b. said lower cylinder having two opposed cut away portions to receive said legs and a lower plane-defining edge to rest on said mounting plate such that the interior of said cylinder is accessible through the opening in said plate; c. said upper cylinder having an upper end plate thereover with a bore therethrough; d. a second plate having a central bore therein and disposed atop said lower cylinder such that said upper cylinder is supported on said second plate and including means to retain said second plate on said lower cylinder and center said upper cylinder on said second plate; e. a threaded shaft extending through the bores in said plates and passing through said cylinders; f. a removable pressure disc retained on the lower end of said shaft, said pressure disc being of a diameter greater than the interior diameter of said upper spin tube bearing; g. a threaded nut disposed on said shaft above said end plate, whereby said cylinder can be disposed over a main bearing housing of a washer with the cut-away portions oriented over the angulated legs thereof, and said shaft can be lowered through said cylinder and through the upper spin tube bearing of said machine, said disc can be retained on the lower end of said shaft, and by rotating said threaded nut to elevate said shaft, said upper spin tube bearing will be removed from the bearing housing.
Claim 3
Dependent Claim
74 words
Structure according to claim 1 wherein said second plate is a circular disc of essentially the same diameter as said second cylinder and said means to retain said second plate on said lower cylinder and center said upper cylinder on said second plate comprises a generally conical fairing attached around a portion of said upper cylinder and expanding downwardly to embrace the upper edge of said lower cylinder and retain said second plate thereon.
Claim 4
Dependent Claim
62 words
Structure according to claim 2 wherein said first plate is retained by a cap having a central aperture therein to expose said nut whereby said tool is entirely integral, said cylinders are composed of a rigid plastic capable of withstanding great axial loading and said plates are metallic whereby said tool manifests high overall resistance to axial compressive forces at minimal weight.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-01-02 | 1981-07-04 | 1982-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-02 | 1985-07-04 | 1986-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-02 | 1989-07-04 | 1990-01-03 | $7700.00 | Window Closed / Lapsed |